ANATOMY

Detailed explanation-1: -… solution of waste material called final, or bladder, urine. It consists of water, urea (from amino acid metabolism), inorganic salts, creatinine, ammonia, and pigmented products of blood breakdown, one of which (urochrome) gives urine its typically yellowish colour.

Detailed explanation-2: -Urine is about 95% water and 5% waste products. Nitrogenous wastes excreted in urine include urea, creatinine, ammonia, and uric acid. Ions such as sodium, potassium, hydrogen, and calcium are also excreted. Urine produced in the kidneys travels down the ureters into the urinary bladder.

Detailed explanation-3: -Urea is the most common form of nitrogenous waste in human body fluids. Urea is less toxic than ammonia but like ammonia, urea is in solution and, for terrestrial animals, its elimination from the body requires some loss of water as water is used to flush it from the body (urea and ammonia are both found in urine).

Detailed explanation-4: -Glucose, amino acids are actively reabsorbed in the nephron and water, other ions is passively reabsorbed.